William Dunlop on the Mar-Train Yamaha Superstock machine in practice at Tandragee on Friday.

William Dunlop, who is riding the Mar-Train Yamaha Superstock machine at Tandragee after Tim Martin stepped in to offer the Ballymoney rider the machine for the event, was second quickest, four seconds behind Sheils.

Mullingar’s Derek McGee (Kawasaki) was next, only three tenths behind Dunlop, with Michael Sweeney, Davy Morgan and Alan Bonner the top six.